56Sierra 1,844 Posted September 27, 2021 Top box and doggie stuff. The top box can be lowered to rest on the bed floor after the trailer is disconnected but I've found it's not objectionable as it is. Years of driving a truck with a utility box trains you for that. It needed to be this high for ease of access and to allow my cooler and portable grill to fit underneath. 67" bed sucks in that respect. 1 Share this post Link to post Share on other sites